BSD 3-Clause License with Research and Network Exception

Copyright (c) 2020-2025 Lux Industries Inc.
All rights reserved.

PATENT PENDING TECHNOLOGY
Enterprise Licensing: [email protected]

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                          LUX FHE - FULLY HOMOMORPHIC ENCRYPTION
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This license applies ONLY to files in the fhe/ directory of this repository.
Files in the mlx/ directory remain under Apple's MIT License.

For enterprise licensing, contact: [email protected]

This software contains patent-pending technology:

- PAT-FHE-010: DMAFHE - Dual-Mode Adaptive FHE (UTXO/EVM optimization)
- PAT-FHE-011: ULFHE - UTXO Lightweight FHE (O(1) comparison bootstrapping)
- PAT-FHE-012: EVM256PP - Parallel uint256 Processing (AVX-512/CUDA/Metal)
- PAT-FHE-013: XCFHE - Cross-Chain FHE Bridge (threshold re-encryption)
- PAT-FHE-014: VAFHE - Validator-Accelerated FHE (TEE + GPU acceleration)
- GPU-Accelerated Programmable Bootstrapping (CUDA/Metal unified)
- Unified MLX/CUDA/CPU Backend Architecture
- Multi-Scheme FHE API Abstraction (TFHE, CKKS, BGV, BFV)
- Deterministic FHE Execution for Blockchain Consensus
- Encrypted Smart Contract State Management

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                          LICENSE TERMS
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Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions, the patent-pending innovations notice, and the following
   disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions, and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of Lux Industries Inc. nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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                          USAGE PERMISSIONS
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RESEARCH USE (Permitted under BSD-3-Clause above):
- Academic research and education
- Non-commercial evaluation and experimentation
- Publishing research findings with attribution

LUX NETWORK DEPLOYMENT (Automatic License Granted):
- Operating nodes on Lux Network mainnet and testnet
- Deploying smart contracts and dApps on Lux Network
- Running fhEVM operations on Lux Network chains
- Integration with Lux Network infrastructure

ENTERPRISE USE (Contact for Licensing):
For commercial deployment outside Lux Network, contact: [email protected]

Enterprise Edition includes:
- Priority support and SLA guarantees
- Custom optimizations for your hardware
- Private cloud deployment assistance
- Training and integration consulting
- Extended warranty and indemnification

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                          MLX UPSTREAM TRACKING
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This repository tracks upstream MLX from Apple (MIT License).
FHE extensions are kept separate in the fhe/ directory to:
- Enable clean rebasing on upstream MLX releases
- Maintain clear separation of licensing
- Allow modular FHE capability addition

Upstream: https://github.com/ml-explore/mlx

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                          CONTRIBUTIONS
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By submitting contributions to files in the fhe/ directory, you agree to
license your contributions under these terms and assign patent rights to
Lux Industries Inc.

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END OF LICENSE